**Bacteriology** by Logan Hurst explores the study of bacteria, including their morphology, ecology, genetics, and biochemistry. This branch of microbiology focuses on identifying, classifying, and characterizing bacterial species. Bacteriology encompasses various specializations such as agricultural, clinical, industrial, marine, public-health, sanitary, and systematic bacteriology. Bacterial cells are distinguished by their lack of a membrane-bound nucleus, with genetic material located in the cytoplasm.